EBK-GX4002-00 Semtech

GX4002 2x2 14.025Gb/s Crosspoint Switch with Trace Equalization and Output De-Emphasis Key Features Description 2 x 2 crosspoint switch architecture The GX4002 is a low-power, high-speed 2 x 2 crosspoint switch, with robust signal conditioning circuits for driving Integrated CDR with 9.95 to 11.3Gb/s and 14.025Gb/s and receiving high-speed signals through backplanes. reference-free operation Automatic rate detect The device consumes as low as 600mW of power (typical) with all channels operational. Unused portions of the chip Dynamic on-chip power management control can be turned off in order to further reduce power Multiple user-programmable power-down saving consumption. modes Independent programmable input trace equalization to The signal conditioning features of the GX4002 include reduce deterministic jitter (ISI) per-input clock and data recovery (CDR), programmable equalization and per-output programmable de-emphasis. Independent programmable output pre-emphasis for The input equalizer removes ISI jittertypically caused by driving long board traces PCB trace lossesby opening the input data eye in 2 Digital control through I C interface applications where long PCB traces are used. The Integrated analog-to-digital converter, which provides integrated CDR resets the jitter budget, effectively access to digital diagnostic information on supply erasing the signal distortion that can occur during voltage and die temperature transmission. Integrated eye monitor and PRBS7 generator/checker Output pre-emphasis capability provides a boost of the Polarity invert, output mute functions available high-frequency content of the output signal, such that the Single 3.3V supply (5%) data eye remains open after passing through a long On-chip I/O termination interconnect of PCB traces and connectors. Low power consumption: 600mW typical The GX4002 features an integrated analog-to-digital Low power option for 4.25 & 8.5Gb/s operation: converter, which, through the serial interface, provides 415mW typical digital diagnostic information about supply voltage and die temperature. 5mm x 5mm 32-pin QFN package The GX4002 device is packaged in a small-outline 5mm -40C to +100C case operation 5mm 32-pin, high-frequency QFN package with exposed RoHS-compliant pad. Applications The GX4002 is Pb-free, and the encapsulation compound does not contain halogenated flame retardant. This Enterprise and carrier applications component and all homogeneous sub components are 10GbE, Fibre Channel and InfiniBand networks RoHS-compliant. Redundancy switching Retimer for 10Gb/s and 14Gb/s backplane and linecards GX4002 2x2 14.025Gb/s Crosspoint Switch with Trace 1 of 74 www.gennum.com Equalization and Output De-Emphasis Data Sheet Proprietary & Confidential 55972 - 0 March 2012I2C Temp Sensor Digital Core Supply Sensor Trace CDR with SDI0/SDI0 Eye Monitor EQ Ch0 SDO0/SDO0 Driver 2 x 2 PRBS 7 PRBS 7 Differential Generator Checker Cross-point Switch Matrix Ch1 SDO1/SDO1 Driver Trace CDR with SDI1/SDI1 EQ Eye Monitor Figure A: GX4002 Functional Block Diagram GX4002 2x2 14.025Gb/s Crosspoint Switch with Trace 2 of 74 Equalization and Output De-Emphasis Data Sheet Proprietary & Confidential 55972 - 0 March 2012